Home / 42,538.98-63,822.78-18,843.24

Finding the Fourth Proportional to 42,538.98, 63,822.78 and 18,843.24

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Solution

The fourth proportional to 42,538.98, 63,822.78 and 18,843.24 is: 28,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.98 : 63,822.78 = 18,843.24 : x
  2. Step 2: Convert to fraction form
    42,538.98/63,822.78 = 18,843.24/x
  3. Step 3: Cross multiply
    42,538.98x = 63,822.78 × 18,843.24
  4. Step 4: Simplify right side
    42,538.98x = 1,202,627,961.01
  5. Step 5: Solve for x
    x = 1,202,627,961.01/42,538.98
  6. Step 6: Final answer
    x = 28,271.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.